// pages/cart/cart.ts
Page({

  /**
   * 页面的初始数据
   */
  data: {
    address:[] as any,
    cart:[] as any,
    allcheck:false,
    totalPrice:0,
    totalNumber:0
  },

  handelAddress(){
    console.log('handelAddress')
    wx.chooseAddress({
      success: (res)=> {
         const  address = res
        wx.setStorageSync('address',address)
        this.setData({
          address
        })
      }
    })
 
  },
  handItemchange(e:any){
    const goods_id = e.currentTarget.dataset.id
    console.log(goods_id)
    let {cart} = this.data
    let index = cart.findIndex((v:any)=>
      v.goods_id === goods_id
    )
    console.log('index',index)
   cart[index].checked = !cart[index].checked
   console.log(cart[index].checked)
    this.setCart(cart)
   
  },
  setCart(cart: any[]){
    let allcheck =true
    let totalPrice=0
     let totalNumber=0
     cart.forEach((v :any)=> {
      if(v.checked){
       totalPrice += v.num*v.goods_price
       totalNumber += v.num
      }else{
       allcheck =  false
      }
     });
     allcheck = cart.length!==0? allcheck:false
     this.setData({
       cart,
       allcheck,
       totalPrice,
       totalNumber
     })
     wx.setStorageSync('cart',cart)
  },
  handelAllchange(){
    let {cart} = this.data
    this.data.allcheck = !this.data.allcheck
    cart.forEach((v:any) => {v.checked = this.data.allcheck
    });

    this.setData({
      cart
    })
    this.setCart(cart)
  },
  // 结算
  handelpay(){
    const {address,totalNumber} =this.data
    console.log(address)
    if(!address.userName){
      wx.showToast({
        title:'请选择收获地址',
        icon:'error'
      })
      return
    }
    if(totalNumber===0){
      wx.showToast({
        title:'您还没有选购商品',
        icon:'error'
      })
      return
    }
    wx.navigateTo({
      url:'/pages/pay/pay'
    })
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad() {

  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady() {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow() {
      const address = wx.getStorageSync('address')
      const cart = wx.getStorageSync('cart')||[]
     let allcheck =true
     let totalPrice=0
      let totalNumber=0
      cart.forEach((v :any)=> {
       if(v.checked){
        totalPrice += v.num*v.goods_price
        totalNumber += v.num
       }else{
        allcheck =  false
       }
      });
      allcheck = cart.length!==0? allcheck:false
      this.setData({
        address ,
        cart,
        allcheck,
        totalPrice,
        totalNumber
      })
      console.log('adress',this.data.address)
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide() {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload() {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh() {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom() {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage() {

  }
})